Of what is the Central Nervous System comprised?
The brain and the spinal cord
PW
Related Biology GCSE answers
All answers ▸Explain how blood is pumped around the body
Neurons do not make direct contact but are separated by synapses. Impulses cross a synapse by means of a neurotransmitter. Describe the process of neurotransmitter release at a synapse. You may use a labelled diagram.
Explain how blood vessels help to regulate a human's body temperature (3marks)
Describe the mechanism of transport in the phloem, involving active loading at the source and removal at the sink.